[mailop] Google feedbackloop

Hi (Brandon), We've setup the Google Feedback-ID header in our mails for quite a while now, we double DKIM-sign with our domain and we review the postmaster pages. However, when I look at the feedbackloop page, it never reports anything. Now I don't expect there something everyday. It always was

Re: [mailop] SmartScreen weirdness

I've seen this with Yahoo btw... One of the 15 shared pool IPs was just permanently blacklisted / not accepting mail. Yours, David On Fri, 31 Aug 2018 at 00:23, Michael Wise via mailop wrote: > > /me coughs discretely ... > > As I don't have the right crescent wrench to what this issue, I hav

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

osoft Corporation| Spam Analysis > > "Your Spam Specimen Has Been Processed." > > Got the Junk Mail Reporting Tool > <http://www.microsoft.com/en-us/download/details.aspx?id=18275> ? > > > > *From:* mailop *On Behalf Of *Laura Atkins > *Sent:* Wednesday,

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

t all subscription forms have > the same risk of wrong addresses. For companies that have a high risk of > folks giving a fake address, like quote sites or download sites or even > whitepaper sites, the site owners need to take steps to protect themselves. > > laura > > >

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

oration| Spam Analysis > > "Your Spam Specimen Has Been Processed." > > Got the Junk Mail Reporting Tool > <http://www.microsoft.com/en-us/download/details.aspx?id=18275> ? > > > > *From:* mailop *On Behalf Of *David Hofstee > *Sent:* Tuesday, August 28

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

; the same risk of wrong addresses. For companies that have a high risk of >> folks giving a fake address, like quote sites or download sites or even >> whitepaper sites, the site owners need to take steps to protect themselves. >> >> laura >> >> >> On Aug

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

Hi Otto, It is not my experience that many people will fill in other people's email address. I've seen 100's of millions of subscribers. Most did not have double opt-in. It mostly went very well. There are cases of form-spam (see e.g. Spamhaus a few years ago) and double opt-in prevents typo's. Bu

Re: [mailop] Gmail - Anybody out there from Gmail, willing to assist with strange reputation issue

should have addressed it to Jan... David H On Fri, 24 Aug 2018 at 10:07, David Hofstee wrote: > Hi David C, > > I've had my dealings with these quote sites... It may apply to you. The > actions you take seem to target email address validity, but Google cites > complaints a

Re: [mailop] Google is sending notifications with big local-parts

Hi José, More do it, but not that many. Some will just clip the local part. David On 10 July 2018 at 14:16, Jose Borges Ferreira wrote: > I'm getting some notifications from @docos.bounces.google.com that have a > local-part with the following pattern 1234567890123+ > 123456789012345678901234

Re: [mailop] Orange.fr and Wanadoo.fr Hardbounces

Hi Emre, My 5xx bounce rate is around 0.2% for these domains. The domains have not gone inactive. Some spam filters reply with such 5xx errors to fend off spam. I haven't seen that @orange yet (but a large Belgium provider does it infrequently). @Philip (and Mathieu): The point that Emre is makin

Re: [mailop] Senderscore.org / ReturnPath decline of reported volume

getting data from a large Australian ISP and they are no > longer getting that data source? > > > > On 29/06/18 19:27, David Hofstee wrote: > > Hi, > > We've been seeing an extreme decline in volume reported by > Senderscore.org/ReturnPath. From e.g. 700k/day to 5k

[mailop] Senderscore.org / ReturnPath decline of reported volume

Hi, We've been seeing an extreme decline in volume reported by Senderscore.org/ReturnPath. From e.g. 700k/day to 5k/day on several dedicated IPs. The actual volume of the customer on those IPs is still the same. This started about 15 days ago. Example IP = 149.235.15.116. This is to traffic in th

[mailop] Arbor DNSSEC firewall issues

An interesting read: https://twitter.com/VDukhovni/status/1008951903147917313 I can't validate, but I would be interested to hear if/how this impacted delivery of emails. Yours, David ___ mailop mailing list mailop@mailop.org https://chilli.nosignal.o

Re: [mailop] SNDS Volume Issue

Yes, we see it too. I only see 2/3 or 1/2 of volume reported. Since the 6th. It seems to be restored today. I don't see higher complaint rates (yay) Yours, David On 14 June 2018 at 03:17, Benjamin BILLON wrote: > Yes. > > Similarly, some IPs sending more than 100 messages per day to Outlook.c

Re: [mailop] Misleading clicks - thoughts

Hi Andrei, I don't have that data set any more, but I previously looked at domains with near 0% open and click rates. They exist. E.g. a domain that was emailed for 15 years, dozens of individual recipients, different customers, ... It went "dead" 10 years ago: Emails were delivered but no one cli

Re: [mailop] Should mail servers publish IPv6 MX records? Could this harm your spam filtering?

tuck with the idea that we should stick to what we have (because we have it). Anyway, take it as it is. I hope you have a great weekend. Yours, David On 8 June 2018 at 16:27, Rob McEwen wrote: > On 6/8/2018 5:49 AM, David Hofstee wrote: > >> > ... score of the sending-IP, whi

Re: [mailop] Should mail servers publish IPv6 MX records? Could this harm your spam filtering?

n may comment on that). Yours, David On 8 June 2018 at 12:35, Stefano Bagnara wrote: > On Fri, 8 Jun 2018 at 11:53, David Hofstee > wrote: > > [...] > > I also think that there is space for a reputation provider which can: > > - Identify more than just IP addresses and do

Re: [mailop] Should mail servers publish IPv6 MX records? Could this harm your spam filtering?

sses and domains from an email. - Is able to process feedback from domain owners and recipients in an automated, quick, effective and anonymous enough way (with the GDPR et al). Feedback is key. Yours, David On 7 June 2018 at 17:29, Rob McEwen wrote: > On 6/7/2018 9:45 AM, David Hofstee wrote: &g

Re: [mailop] Should mail servers publish IPv6 MX records? Could this harm your spam filtering?

Hi Rob, Isn't it time conclude that "separate IP blacklists" combined with "separate content filters" are not sufficient any more? Because you need one to interact with the other? You need the content filter to steer the IP blacklist (and other traffic limiting methods like throttling and greylist

Re: [mailop] SNDS report issues?

It does... Yours, David On 31 May 2018 at 21:30, Michael Wise via mailop wrote: > > > Please … try this, replacing [MyKey] with … your key: > > > > https://sendersupport.olc.protection.outlook.com/SNDS/ > data.aspx?key=[MyKey]&date=052818 >

Re: [mailop] GDPR and SMTP in general

Hi, There is a difference between being a "processor" and "telecommunications". The telecommunications laws are different, more strict sometimes. I know what the difference was in Dutch law, not sure in the EU area. Yours, David On 25 May 2018 at 15:51, Renaud Allard via mailop wrote: > > >

Re: [mailop] Mailbox full impact on delvierability

Hi, So Gmail will 4xx this error (which is abnormal). I typically convert that into a 5xx bounce and be done with it (chances are low that the inbox will be emptied later). It gave me queueing issues too, delaying other emails (the gmail.com queue was halted until this email was retried again in P

Re: [mailop] Not receiving Y! local domains complaints

Please note there is a difference in Yahoo European and other operations... It can be seen in the MX records. Probably GDPR related. That may explain it. Yours, David On 23 April 2018 at 16:59, Benjamin BILLON wrote: > Hi Lindani, > > > > You're not alone on this, although we still get yahoo.

Re: [mailop] Salesforce Marketing Cloud EMEA Deliverability Consultant Role - France

Hi Anthony, I'm not sure what the consensus is on job adverts. I have an opening too. But I would prefer it if you keep it away from this mailing list. Email deliverability is a small world. Maybe you can use twitter for job openings... #email #deliverability #job ... Yours, David On 17 April

Re: [mailop] BGP Announcements

Hi Ryan, If spamfilters use machine learning, like the ones at Google, Microsoft, Yahoo, Proofpoint (and Cloudmark) then they tend to have a lot of inputs. Including "reputation" on AS and IP which may be dependent on changes in routing. Because that is one of the tricks that spammers use. This ca

[mailop] Just for fun

Test you DNS-foo by reading https://security.stackexchange.com/questions/182855/is-it-okay-to-publish-a-tlsa-records-for-non-dnssec-cnameed-services Yours, David ___ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listi

Re: [mailop] Any Spark New Zealand people here?

no luck ping me and I'll see if I can find someone. > > > > On Tue, 20 Mar 2018, David Hofstee wrote: > >> No, but I am interested too. I couldn't get a hold of them. >> >> Yours, >> >> >> >> David >> >> On 19 March 2018 at

Re: [mailop] Any Spark New Zealand people here?

No, but I am interested too. I couldn't get a hold of them. Yours, David On 19 March 2018 at 21:38, wrote: > If anyone has postmaster info for xtra.co.nz (owned by Spark.co.nz), > could you contact me off-list? Trying to look into a soft bounce issue. > > Thanks! > >

[mailop] Surge in Yahoo bounces

Hi, As some have seen there is a spike in Yahoo's "*554 delivery error: dd This user doesn't have a yahoo.com account ...@...*" bounces. It appears the bounces are incorrect and recipients should not be removed

Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

Hi John, > If you don't like the way we handle your mail... I never stated anything like that. I was discussing the fact that I think it is not an effective method since it can be gamed and has quite some false positives. I agree with your reply. I always have and always will. I just don't think

Re: [mailop] Anyone from Gmail ?

principles I am not sure how much tin-foil I can advise you to use. Tracking is everywhere, in many forms. Not just in email newsletters. So I think this discussion belongs somewhere else. Yours, David On 6 March 2018 at 18:02, Bill Cole wrote: > On 6 Mar 2018, at 9:09, David Hofstee wr

Re: [mailop] Anyone from Gmail ?

Hi Vaibhav, So if you have 12% open rate.. It means that for every (100/12 =) 8.3 emails you send, one is relevant. It is my expectation, maybe Brandon knows more, that your emails are not relevant enough. Is this really something the subscribers asked for? Because they lack real engagement. We

Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

I am against scanning everything in order to protect. Because every method an ESP needs to do to "fix" these bad unsubscribes can just as easily be spoofed by bad actors (e.g. redirect url to non-malicious content for first 10 minutes). And not all ESPs are even aware of this scanning process (if t

Re: [mailop] Quick question on Comcast FBL...

We see it too, down to 2011. This was Feb 7th where someone made note of that. Of IPs that are not sending email anymore. Yours, David On 26 February 2018 at 17:36, Eric Tykwinski wrote: > Just last week I’ve noticed a sudden uptick on very old spam > notifications. (Some dated back to 2010

[mailop] TLS support

Hi, A quick question... Does anyone have numbers on: - the (volume) percentage of emails sent via TLS (capable mail servers) - the (volume) percentage of emails sent via TLS where the receiving mta has a valid certificate - the (volume) percentage of emails sent via TLS where the receiving mta use

Re: [mailop] VERP in 2018 (Was: RoadRunner Help?)

required DNS modifications. Maybe there is room for an RFC that describes the required DNS modifications. It would allow for more tooling to be written that can verify such settings. Yours, David On 19 February 2018 at 13:08, Stefano Bagnara wrote: > On 19 February 2018 at 12:24, David Hofstee &g

Re: [mailop] VERP in 2018 (Was: RoadRunner Help?)

e would also let you send without the modifications. But we pushed for strong authentication. This made the push easier and faster. Yours, David On 19 February 2018 at 13:08, Stefano Bagnara wrote: > On 19 February 2018 at 12:24, David Hofstee > wrote: > >>Using a return-path

Re: [mailop] the joys of VERP, was RoadRunner Help?

I've seen many asynchronous bounces where the local part is cut-off after 64 characters... It seems some mta's are pedantic in this regard. Yours, David On 17 February 2018 at 18:46, John Levine wrote: > In article mail.gmail.com> you write: > >The use of IDs instead of the real original ema

Re: [mailop] VERP in 2018 (Was: RoadRunner Help?)

>Using a return-path in the domain of your customer can be easy when >you have a multi-thousands-dollars contract for each customer. But >when you have "free" users or "few dollars per year" customers, you >can't afford manually helping people to configure their domains so >that you can use that in

Re: [mailop] Yahoo Support Page

As much as I like to complain, I am not sure I would come to the same conclusion. It seems like a simple bug. Yours, David On 13 February 2018 at 19:49, Philip Paeps wrote: > On 2018-02-13 15:07:33 (+0100), David Hofstee wrote: > >> Ok... So this is the clue with the Yahoo form..

Re: [mailop] Yahoo Support Page

t had issues submitting stuff through the Yahoo Postmaster forms >> in the last few weeks - most recent a few days ago. Basically before you >> try to, you need to (create and then) login to a yahoo email address - then >> visit postmaster.yahoo.com. >> >> Udeme >&

Re: [mailop] Yahoo Support Page

t few weeks - most recent a few days ago. Basically before you try > to, you need to (create and then) login to a yahoo email address - then > visit postmaster.yahoo.com. > > Udeme > Postmaster at Wish > > On Tue, Feb 13, 2018 at 7:59 AM David Hofstee > wrote: > >> This

Re: [mailop] Yahoo Support Page

This is still the case... Yahoo cannot be reached for deliverability issues. David On 19 September 2017 at 04:40, Benjamin BILLON via mailop wrote: > What's the URL? > Is it to reach the page, or after you submit the form? > > > -- > > Benjamin > > 2017-09-19 1:53 GMT+0

Re: [mailop] Mail Transfer Agent Alternatives

So yes, Message Systems have a model that they want you to pay per email. Maybe not yet, but in the future. If it is on premise or in the cloud, they don't care. To do that they took over Port25. You are forced to get updates due to the fact that you need security updates. Some ESPs have started t

Re: [mailop] Issues delivering to Hotmail addresses

Something else is going on. Because separate regions is not a problem if you would store the email "per recipient". Just replicate it and store it in more than one region. Somehow this is not allowed. So it also means that they only want to store the email just once. That can be a functional requi

[mailop] malware on cloud...

Hi, I hadn't seen this, https://blog.knowbe4.com/heads-up-new-ransomware-strain-encrypts-cloud-email-real-time-video, before. Another interesting threat vector (this example specifically aimed at email). Yours, David ___ mailop mailing list mailop@mai

Re: [mailop] Hotmail/Outlook feedback loop processing delay?

> It was not on their inbox, so they used search to find all emails from us and last year's email > came up. So they clicked on last year's email and opened it. They did not report it as spam > yesterday, they only viewed it. They don't use an email client, they only use the web interface > provid

Re: [mailop] Anyone with a pulse at combell.com?

Hi Philip, Did you try it with a non-"trouble.is" domain? E.g. an @gmail.com account? Yours, David On 6 January 2018 at 15:32, Philip Paeps wrote: > I'm getting repeated spamtrap hits from customers of combell.com. > Forwarding messages (even just headers) to abuse@ gets bounces: > > ab...@

Re: [mailop] Anyone else seeing "451 4.7.500 Server busy" from Hotmail?

Hi Frank, The AS values are internal Microsoft codes, unknown to most here. They seem to be failrly consistent. Microsoft changed their server platform a few months back. Not everything, such as "when do you see X" is clear yet. The server may be busy (for the level of reputation of the sending I

Re: [mailop] Issue with Gmail Postmaster

Hi, We recently (in October) added a "default" DKIM signature. You start with a "low" reputation (as they don't know you). I am pretty sure they retroactively notched my domain reputation up from medium to high. I remember being on medium, now I see the reputation going to high on 8th of December.

Re: [mailop] Message recipients column in SNDS

It is even so bad that Microsoft support misinterprets the statistics... >From a Microsoft ticket (regarding a dedicated IP): We have investigated your deliverability issue (case ticket: SR#1407666085). At the current time, your IP address (149.235.15.xx) is blocked for namespace mining behavior a

Re: [mailop] 5.7.1 bounce codes

Analyze the Diagnostic-Code text first, that is for sure. You can expect anywhere between 1000 and 2000 regex rules to get to 99%+ effectiveness. (E)Smtp codes are bad for primary bounce handling rules, they work fine as a backup. I would state N is 3 or 4. But I would not remove the recipient fro

[mailop] Different From domain and Reply-To domain

Hi, Can people here share their experience (or spamfilter configuration) with differing 5322.From and 5322.Reply-To domains in larger volumes of email? Is it a problem, if so, where? If it is a problem, are there requirements so that legitimate email is accepted? Any info and opinions on this is

Re: [mailop] Office 365 - Emails marked as not passing fraud detection

Maybe this... https://twitter.com/certbund/status/933674851092566017 David On 24 November 2017 at 04:31, Shane Clay via mailop wrote: > Hi All > > > > I can’t figure this one out so looking for some help from people in the > know. One of our clients has a postfix mail relay server used for rel

Re: [mailop] Does JMRP send everything? (Was: Re: Hotmail, green SNDS and junk folder placement)

Hi Michael, I recently wrote: > My question would be: If Microsoft does not want all complaining recipients removed / listwashed, which I can understand, why not provide anonymous feedback on bad senders? Provide similar info like Google is providing (with the Feedback-ID or sender domain). Why th

Re: [mailop] Outlook says "mail accepted for delivery" but it never shows up

wanted > to know why it was dropped by Microsoft so we rinsed and repeated... > > > > > > > > David > > > > On 22 November 2017 at 10:42, Klaus Ethgen wrote: > > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512 > > Hi, > > Am Mi den 22. No

Re: [mailop] Outlook says "mail accepted for delivery" but it never shows up

wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512 > > Hi, > > Am Mi den 22. Nov 2017 um 10:21 schrieb David Hofstee: > > It certainly could also have to do with the html content formatting. I > have > > seen that a cleaner html layout suddenly allowed my email. >

Re: [mailop] Outlook says "mail accepted for delivery" but it never shows up

Hi Mathieu, It certainly could also have to do with the html content formatting. I have seen that a cleaner html layout suddenly allowed my email. Same IP, same sender, same text, same layout, different html. That made the difference between dropping the email and letting it through at Microsoft.

Re: [mailop] Random question about complaints

Have seen this too. Our CEO triggered an FBL from Microsoft. The email was sent from our corporate mail server... He kept wondering why he would no longer be able to forward anything to his hotmail account. That was fun. David On 15 November 2017 at 19:45, Nick Schafer wrote: > Thanks all! Ver

Re: [mailop] A proposal for automated management of mail sending limits

Small shops don't do that because they lack expertise, data and time. If we want email to remain accessible, we should remove this obstacle. Yours, David On 14 November 2017 at 16:24, Ken O'Driscoll wrote: > On Tue, 2017-11-14 at 10:05 +0100, David Hofstee wrote: > > I agre

Re: [mailop] A proposal for automated management of mail sending limits

Hi Ken, I agree that it is a problem. I do think this could be done at connection time only. Of of the tricky parts is that all mail servers I know have trouble with throttling. They can throttle on a (set of) recipient domain(s), but not on a cluster of MXs from e.g. Microsoft. E.g. they put hotm

Re: [mailop] About the Certified Senders Alliance

h our partners, again. Finally every > change made to the admission criteria need to be approved by the CSA > committee, who I mentioned early consists of two ISP partners and two ESPs. > Right now SPF and DKIM are mandatory for CSA senders. DMARC, or DMARC-ish > authentication by alig

Re: [mailop] mail.ru google and DMARC

> And where the heck does mail.ru publish it's DMARC policy via DNS? dig txt _dmarc.mail.ru David On 2 November 2017 at 13:28, Benoit Panizzon wrote: > Dear List > > I have come across a strange problem. > > One of our customers is forwarding his emails to his google account. > > We do imple

Re: [mailop] About the Certified Senders Alliance

> would simply give them a false feeling of having done something, that does > not solves the underlying problem. > > Kind regards, > > Tobias Herkula > -- > optivo GmbH > Product Management (Infrastructure) > ____ > From: mailop on

Re: [mailop] About the Certified Senders Alliance

Hi Alexander, Welcome to Mailop. A few somewhat criticising questions on the CSA: - Complaint policy: What is the complaint policy for recipients? I tried to find it, but could not. Is anonymity guaranteed? Also not available in the data protection policy as found on the website. Please consider c

Re: [mailop] Certified Senders Alliance

The rules they offer are "normal" for an ESP. I have complained personally, a couple of times (to the address they make you add in the headers). Did not get any response on that (repeatedly). Microsoft and Yahoo are partners of the CSA. Terry posted something on it but I can't remember what they d

Re: [mailop] Hotmail, green SNDS and junk folder placement

+1 ... definitely David On 30 October 2017 at 18:56, Anne P. Mitchell Esq. wrote: > > > > > > > > I'm asking a few people to confirm my understanding and will get back to > y'all. > > > > Aloha, > > Michael. > > -- > > Michael J Wise > > Microsoft Corporation| Spam Analysis > > "Your Spam Spec

Re: [mailop] Hotmail, green SNDS and junk folder placement

This is also news to me. Wow. I also wondered why Yahoo recipients seemed so picky but I didn't draw the right conclusion (that recipients are the same everywhere and something was wrong with the MS metrics). My question would be: If Microsoft does not want all complaining recipients removed / lis

Re: [mailop] Any information for the MX mail.h-email.net

forgot to share... On 20 October 2017 at 10:13, David Hofstee wrote: > Yeah. There is a whole slew of mail servers that will not relay to actual > recipients that want your email. These are basically domains for rent and > you don't know who is renting them ( e.g. https://www.mca

Re: [mailop] unique/shared public DKIM keys per domain?

Didn't Google mention they wanted the age of the keys to count in the spam score? Old keys tend to have a longer timeframe to get stolen I guess. Maybe a frequent key changes is an indicator of having good ops practices which result in fewer incidents? Funny enough, I have only ever met one custom

Re: [mailop] List-Unsubscribe support

ls without the List-Unsubscribe header. Not sure what will happen then. Thanks, David On 3 October 2017 at 14:21, David Hofstee wrote: > Hi, > > Does anyone have a list of the web/mail client support of the > List-Unsubscribe header? The list-unsubscribe.com site does not seem t

[mailop] List-Unsubscribe support

Hi, Does anyone have a list of the web/mail client support of the List-Unsubscribe header? The list-unsubscribe.com site does not seem to have it. *Free mail addresses & web interface:* Live.com/Office365 -- only support the mailto Gmail -- supports the first listed method Yahoo -- does not supp

Re: [mailop] Contact Cloudmark ?

. I am not sure where your sentence "never contact me again" is about. Please clarify. Yours, David On 20 September 2017 at 14:16, Vick Khera wrote: > On Wed, Sep 20, 2017 at 4:30 AM, David Hofstee < > opentext.dhofs...@gmail.com> wrote: > >> E.g. co-registrat

Re: [mailop] Contact Cloudmark ?

... sorry ... not James... I meant Romain of course. David On 20 September 2017 at 10:30, David Hofstee wrote: > Hi James, > > Your website indicates you provide services that "just do not work" for > email. It may be legally allowed but that does not mean your recipi

Re: [mailop] Contact Cloudmark ?

Hi James, Your website indicates you provide services that "just do not work" for email. It may be legally allowed but that does not mean your recipients want and expect those emails. E.g. co-registration. In my opinion, many of the companies I met that did that, just use it for "want to win an I

Re: [mailop] Contact Cloudmark ?

Hi Romain, Not sure if you know this: Most blacklists require you to "solve your problem" first. Not sure if they want to discuss it with you, as it is your problem and not theirs (I'm fairly certain they won't like to discuss it with you). They do read and respond to the forms filled, generally

Re: [mailop] Hotmail "Organization queue quota exceeded."

There seem to be MS issues in receiving email. See https://portal.office.com/servicestatus . Is this from today only? Yours, David On 18 September 2017 at 15:18, Benjamin BILLON via mailop wrote: > Hello, > > I'm hearing about replies like "450 4.7.3 Organization queue quota > exceeded" for .

Re: [mailop] amusing dns failure, pgsurveying.com

Hi Carl, Interesting setup. What do you mean by 'clever'? Because I am not sure what this setup will gain them. Yours, David On 30 August 2017 at 18:55, Carl Byington wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512 > > If you do much work in email / spam control, you end up seeing

Re: [mailop] mail.protection.outlook.de IPv6 broken

You are right. But there exist so many domain setups that are borken (IPv6 issues, backup MX that won't accept email, disk that are full, ...). Because email is complex for most. What was the reason you posted it here? You could 'reroute' the email to an IPv4 sending IP when pattern X is replied.

Re: [mailop] RFC question on smtp replies...

handler is a third example. I would actually say that, since the reply text can be included in a DSN, it should be clearer. It is not just humans that this is intended for. Yours, David On 7 July 2017 at 18:44, Bill Cole wrote: > On 7 Jul 2017, at 6:28, David Hofstee wrote: > > But it

Re: [mailop] RFC question on smtp replies...

on checking if it is a bug or not. Yours, David On 7 July 2017 at 12:28, David Hofstee wrote: > Yes, I know. The subsequent RFCs 2821 and 5321 are equally unclear on > this, I think. > > But it is a bit weird to say the human-readable text is for humans only. > Since it is trans

Re: [mailop] RFC question on smtp replies...

move status codes, or concatenate it in the > single line (since it's a human readable form, you should probably replace > CRLF + status code + delimiter characters with a whitespace, because in > human-readable form you do not expect the words to be wrapped or the lines > to conta

[mailop] Fwd: RFC question on smtp replies...

is over quota. Please direct\r\n452-4.2.2 the recipient to\r\n452 4.2.2 https://support.google.com/mail/?p=OverQuotaTemp abc.def - gsmtp" I hate this inconsistency before the weekend ;-). Yours, David On 7 July 2017 at 12:00, Michelle Sullivan wrote: > David Hofstee wrote: > >&

[mailop] RFC question on smtp replies...

Hi, I've an interesting RFC question. In an SMTP reply, one can have single line or multiline replies. E.g. 521 single line reply or 521-Line one 521-Line two 521 Line three See also https://tools.ietf.org/html/rfc821#page-50 . My question is: The reply is an answer that is, necessarily, form

Re: [mailop] SNDS - Low Inboxing

> During the two week stretch of engagement concentration we saw opens from 8 - 11%. The tricky part is expanding the list to good and interested contacts that have experienced bulk folder placement and probably aren't checking the spam folder. That is a pretty low open rate for any standard. I wo

Re: [mailop] Properly vetting an hosting provider before buying/moving

Hi Stefano, To answer your question: I don't think many other 'reputation providers' exist that have better info (Spamhaus has paid-for reputation info so you may ask someone who pays). Not many recipients use Spamcop (which is a request in disguise... please make better reporting options) and bot

Re: [mailop] Any PlusNet (UK) admins on this list?

Hi Daniel, You are not providing any detail and I presume you are new here. The question you ask is too broad to provide a good answer. Most people here make their question much more specific, including details, so that it can get answered. Please read up and be more specific. Some resources for

Re: [mailop] Google email hosting and abuse handling?

For the most part I agree. Maybe there should be a mechanism to ensure that dangerous content is flagged in such a way that it is 'disarmed' (or very explicitly flagged) but available for research. Not all abuse@ departments require, or are equiped, to work with viruses. Yours, David 2017-05-04

Re: [mailop] Is Yahoo! breaking the RFC 5321 for an Implicit MX?

a simple typo. And then there are cases when parked domains do have port 25 open and/or an MX record. Different discussion. David Hofstee OpenText 2017-04-19 3:50 GMT+02:00 John Levine : > In article <92c77841-5260-5c05-c3e6-56671eeb2...@pccc.com> you write: > >However, under RF

Re: [mailop] UOL Spam Compliant Format

complaint rates but I have no numbers for that. David Hofstee OpenText * I have seen people press the spam button mere minutes after filling in the subscribe form which was as clear as can be. Subscribers sometimes just can't find the unsubscribe link, forgot they opted in, sometime

Re: [mailop] Enforcement of RFCs [was: GoDaddy Email admins' in the house?]

e nice if the 'p=none' policy would be called 'testing phase' in DMARC. I see too many corporates staying there. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) - Oorspronkelijk bericht - Van: "Michael Peddemors&quo

Re: [mailop] UPC / Liberty Global: No retries after tempfail (greylisting)?

Hi Benoit, I have forwarded your email to an email admin @UPC. He is a busy man, not sure if he will respond. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) - Oorspronkelijk bericht - Van: "Benoit Panizzon" Aan: mailop@

Re: [mailop] Storing 821 envelope recipients in an 822.Header?

The X- type headers are deprecated... https://tools.ietf.org/html/rfc6648 Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) - Oorspronkelijk bericht - Van: "John Levine" Aan: mailop@mailop.org Cc: st...@blighty.com Verzonden:

Re: [mailop] Spamcop Contact

I've always had a consistent answer from the deputies@ address. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) Van: "Brad Peruski" Aan: "mailop (mailop@mailop.org)" Verzonden: Woensdag 31 augustus 2016 20:

Re: [mailop] How many more RBL's do we really need?

The Live.com Spam-butten, in Dutch, translates into 'unwanted mail'. Ok... Sure. Whatever. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) - Oorspronkelijk bericht - Van: "Dominique Rousseau" Aan: mailop@mailop.or

[mailop] SNDS data missing

Hi, Do more people see SNDS weirdness? On Sunday I only see the results for half of a day (Sunday 8 PM to Monday 8 AM CEST). Saturday is not displayed at all. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP

Re: [mailop] How many more RBL's do we really need?

n of the sender. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) - Oorspronkelijk bericht - Van: "Anne P. Mitchell" Aan: "Michael Wise via mailop" Verzonden: Maandag 29 augustus 2016 19:08:58 Onderwerp: Re: [mailop] Ho

Re: [mailop] How many more RBL's do we really need?

It see it as typical that one receives a baseline of 0.02% or 0.01% complaints for legitimate senders where the opt-in process is fine and dandy. Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) Van: "Eric Henson" Aa

Re: [mailop] Facebook/Twitter, advice/anyone here?

either. And I don't see why the 550's, telling that there is a technical issue in your PTR, do not count (after a number of those). Because you either fix the issue or stop mailing to recipients that will not receive it. A month is a fine time to fix issues (any issue). Met vriendelij

[mailop] Gmail now requires DKIM / SPF

er itself. I was hoping for a strong authentication booster ;-). Met vriendelijke groet, David Hofstee Deliverability Management MailPlus B.V. Netherlands (ESP) ___ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailma

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